Photographic elements containing compounds derived from cyanomethyl sulfones

ABSTRACT

MEROCYANINE DYES DERIVED FROM CERTAIN CYANOMETHYLSULFONE COMPOUNDS ARE USEFUL AS ULTRAVIOLET FILTER DYES, ESPECIALLY FOR PHOTOGRAPHIC ELEMENTS. 2,2&#39;&#39;-BIS-$ 3-(3SULFOPROPYL)-2-THIAZOLIDINYLIDENE)ETHYLIDENE$-2,2&#39;&#39; -DECAMETHYLENEDISULFONYL)DIACETONITRILE, DISODUIM SALT AND TETRAMETHYLENE BIS$11-$3- 3-(3-SULFOPROPYL)-2-THIAZOLIDINYLIDENE!-1 -CYANOPROPENYSULFONYL$UNDECANOATE$, DISODIUM SALT ARE ILLUSTRATIVE OF THE FILTER DYES OF THE INVENTION.

"United States Patent Office 3,723,154

Patented Mar. 27, 1973 This invention describes new compounds derived from 3,723,154 cyanomethylsulfones which are useful as ultraviolet filter PHOTOGRAPHIC ELEMENTS CONTA NING C dyes and which have water solubility, low diffusibility and POUNDS DERIVED FROM CYANOMETHYL low detergency. The compounds of the present invention 5 minimize the detergency while malntaining the low dif- Gene 325; iggf ggg gg gi g gg fusibility and the same light-absorption properties as the No D rawing. Filed June 19719 No. 155,294 ultraviolet filter dye compounds of my US. Pat. 3,486,897.

Int. CL G03c 1/84 It is an object of my invention to provide new coms 117 33 3 12 Cl i pounds which are useful ultraviolet filter dyes.

Another object is to provide new compounds which are useful in making photographic elements. *F THE DISCLQSURE Another object is to provide a process for preparing the Merocyamne dyes derived from certain cyanomethylnew compounds f my i i sulfone compounds are useful as ultraviolet filter dyes, A further object is to provide photographic elements especially for photograph elements- 15 comprising a support having thereon at least one ultrasulfiopropyl) 2 y i y violet filter layer consisting essentially of a hydrophilic amethylenedisulfonyl)diacetonitrile, dlsodium Salt and colloid and at least one of the new dye compounds of my tetramethylene bis{l1 {3-[3-(3-sulfopropyl)-2-thiazolii ti d y CYEIIIOPIOPEHYISUKOHYI}undecanoatffi, The foregoing objects are illustrative and not limitative sodium salt are illustrative of the filter dyes of the mvenof the objects of my invention. tlon. The novel compounds of the invention include those having the general formula: This invention relates to compounds useful as filter -x- /CN NC\ ,Y. o=s Rl-r-i b=cr1-cu=o c=oH-o11=d feat-song. SO2-RSOI dyes and to photographic element containing said dyes wherein X and Y are the same and each represents the in a hydrophilic colloid layer. non-metallic atoms required to complete a thiazolidine The compounds of the invention, broadly speaking, are nucleus, R and R, are the same and each represents an merocyanine dyes derived from certain cyanomethylsulalkylene radical, Q and Q are the same and each fones described hereinafter. They absorb ultraviolet light represents a hydrogen atom or a salt-forming cation and and have properties which make them useful filter dyes. R represents a member selected from the group consisting Although the dye compounds of the invention appear to of (1) an alkylene radical having 8 to 20 carbon atoms be primarily useful with respect to light-sensitive silver and (2) halide color films; if desired, they can be incorporated in light-sensitive silver halide black and white films. 1)n'-?AR3Al f(CH2)nl As is known to those skilled in the photographic art 0 silver halide emulsions are sensitive to ultraviolet light.

Color films such as Kodachrome and Ektachrome, for wherein A and A each represents 0 or example, would be adversely alfected by ultraviolet light unless protected therefrom. To illustrate, if ultraviolet light is not prevented from reaching the silver halide containing layers of a color film, such as those iust menwherein R is H or lower alkyl, R represents a divalent tioned, the film will be more bluish than it should be. radical selected from the group consisting of an alkylene Snow, for example, will have a bluish cast. Similarly, radical having 2 to 20 carbon atoms, a cycloalkylene blacktop driveways will have a bluish apperance. radical having 5 to 6 carbon atoms, an arylene radical From the foregoing brief discussion it will be apparent having 6 to 18 carbon atoms, a mixed alkyl and aryl that to obtain color pictures of true color rendition ultraradlcal having 8 to 20 ca b at ms and a mixer alkyl violet light should be prevented from reaching the silver {111d cycloalkyl radical having 3 to 20 Wherehalide containing layers f h color fi1 in n and 21 each represents a whole positive number of at least 1 and wherein the sum of n and n; and the number of carbon atoms of R collectively, represent a whole positive number of from about 10 to 30.

Ethylene, trimethylene, tetramethylene, pentamethylene, hexamethylene, heptamethylene, octamethylene, decamethylene, undecamethylene, dodecamethylene, tridecamethylene, tetradecamethylene, pentadecamethylene, whlch followg Its absorPtlon maxlmum, 382 P hexadecamethylene, heptadecamethylene, octadecamethmethanol and its absorptlon curve shape in a gelatin coatylene, nomadecamethylene and decyldecamethylene, for

ing is silch that its {absorption cuts sharply.near 400 example, are illustrative of the alkylene radicals R, can nm. It is thus essentially colorless. It is otherwise photo In my US. Pat. 3,486,897 patented Dec. 30, 1969 dye compounds useful as ultraviolet filter dyes are disclosed. These dye compounds are derived from cyanomethylsulfone compounds. The dye of Example 9, 2-(3-cyano-3- dodecylsulfonylallylidene) 3 (3 sulfopropyl)thiazoli- 0 dine, potassium salt, is particularly useful for the reasons graphically it is P y insoluble and has Cyclopentylene and cyclohexylene are illustrative, for low ditfusibrhty. However, it has a h gh degree of deterexample, of the cycloalkylene radicals R can be g y, P P Y Which hinders coating, pl of Phenylene, methyphenylene, naphthylene, biphenylylhydrophilic coiloid solution such as gelatin coating soluene, anthrylene, phenanthrylene and terphenylanthrylene, tions and causes foaming in processing solutions in which for example, are illustrative of the arylene radicals R it dissolves. can be.

CH3 ether, the dye was thrown out of solution and the solvent 1 decanted. The residue was washed twice with ether and T then dissolved in absolute ethanol. The sodium salt was C a prepared by adding a solution of 2.1 g. sodium iodide dis- 5 solved in a minimum amount of ethanol. The solution for example, are illustrative of the mixed alkyl and aryl Was heated to boiling and enough Water added to j radicals whi h R a b solve the dye. On cooling a yield of 2.90 g. (48%) of the dye was obtained. After two recrystallizations from 85% Cyclohcxylenedimethylene, i.e. aqueous ethanol, it melted at 178 dec. The absorption and photographic data are given in Tables I and II hereinafter.

g g: EXAMPLE 2 Tetramethylene bis{11 {3-[3-( 3-sulfopropy1)-2-thiazoli- Z 15 dinylidene] l cyanopropenylsulfonyl}undecanoate}, H gig H disodium salt for example, is illustrative of the mixed alkyl and cyclo- Anhydro 2 2 anilinovinyl) 3 (3 su1f0pr0py1) y s can 2O 2-thiazolinium hydroxide (4.5 g., 7 mmol), tetramethylh 15 a lower alkyl radwal It can b6 y ethyl, ene bis 1d-(cyanomethylsulfonyl)undecanoate] (2.22 g., P PYL P PYL butyl, y P y 0f hexyl, for 3.5 mmol), acetic anhydride (1.0 m1.) and triethylamine p (2.9 ml.) were heated in dimethylformamide (10 ml.) The compounds of the Present invention can be solution for 10 minutes gradually rising from 80 to pared by h h h Y Q- -Q-f y 110. The dye was isolated and purified as in Example 1. ky m hydroxlde Wlth an PP P Y- The yield was 3.41 g. (85%). The purified dye fused at anomethylsulfone COIIIPOImd in the Presence of a basic 7 8-80 melting eventually around 140. Absorption data condensing agent such as a trialkylamine, e.g. triethyli i Table I, amine, tri-n-propylamine, tri-n-butylamine, etc., N-meth- EXAMPLE 3 ylpiperidine, N-ethylpiperidine, N,N-diethylaniline, etc. Two gram moles of the anhydro compound to one gram blphenylylene mm-{3'[3'(3'Su1fopropyl)'2'thlazo mole of the cyanomethylsulfone compound is ordinarily lidinylidene] 1 CY -l-propenylsulfonyl}, disodium employed in preparing the compounds of the invention. salt Anhydro 2 (2 anilinovinyl) 3 (3 sulfopropyl)- 2-thiazolinium hydroxide, anhydro-2-(2-anilinovinyl)-3- =(CHz)sC00 2)s] (3-sulfobutyl)-2-thiazolinium hydroxide, anhydro-Z-(2- anilinovinyl)-3-(4-sulfobutyl)-2 thiazolinium hydroxide Anhydro 2 y 3 P PYD- and anhydro-2-(2-anilinovinyl-3-(2-sulfoethyl-2-thiazolithiazolinium hydroxide a. 1 mmol), p y nium hydroxide, for example, are illustrative, but not 40 ylene bi$[ll-(qahomethylsulfohyl)hexahoate] 15-: limitative, of the anhydro compounds used in preparing 5 acetlc anhydride and trlethylamlhe the compounds f th i ti (4.2 ml.) were heated in dimethylacetamide (15 ml.)

The r ti u d i preparing h Compounds of my solution at 100120 for 5 minutes. The dye was thrown invention is conveniently carried out in the presence of out of solutioh With ether and the Tesldh? Washed Wlth an inert Solvent di f r example, an alkanol such as ether. The residue was dissolved in a 5:1 mixture of chlomethanol, ethanol, propane], or butanol, acetone, roform and methanol. This solution was chromatographed dioxane, pyridine, dimethylformamide, dimethylacetaon a slhca 9 1s the mide, quinoline, and the like, at elevated temperatures. m 9 f leavmg the major lmpunty the The desired compounds formed are separated from the thlazfz'hnocapbocyanme on the column bq 250 of reaction mixtures using known procedures illustrated in 5019mm was .conected. and the Solvent dlstlned The Examples and can be Purified in known fashion by residue was dlssolved in ethanol and enough water added one or more recrystallization from suitable solvents such to dissolve An ethan9lic Solutiol} of Sodium. iodide as the solvents named hereinbefore' (1.5 g.) was added to give the SOdlUIl'l salt which was The following examples further illustrate the comfiltered off and dned' The yleld 8 pure dye thlis obtamefl pounds of the invention and their preparation. 3 .33; 164-8 Absorpuon data is EXAMPLE 1 EXAMPLE 4 r N,N' phenylenebis{6-{3-[3-(3-sulfopropyl) 2 thiazo- P PY 2 fhlazolldlnyhdehellidinylidene] 1 cyano 1 propenylsulfonyl} hexanethylidene} 2,2 (decamethylenedlsulfonyl)diacetoniid di di l trile, disodium salt 0 [R=-(CH1) C O-NHQNH-C o-( CH2) 5-] 2)10 s s 0N NC H 0 5 C=CH--CH=C C=CHCH=C E 2 sO2R-S0 N f 2)a aNB 2)sS0zNa Anhydro 2 (2 anilinovinyl) 3 (3 sulfopropyl)- 7 Anhydro 2 (2 anilinovinyl)-2-(3-sulfopropyl) 2- 2-th1azol1nium hydroxide (4.56 g., 14 mmol), decamethylthiazolinium hydroxide (3.26 g., 10 mmol), N,N-phenylenedisulfonyldiacetonitrile (2.44 g., 7 mmol), acetic anhyebis-[6-(cyanomethylsulfonyl)hexanamide] (2.56 g., 5 dride (2.0 ml.), and triethylamine (4.9 ml.) were heated mmol), acetic anhydride (1.4 ml.), and triethylamine in dimethylacetamide (10 ml.) solution for 10 minutes at (4.2 ml.) were heated over 10 minutes in the range -120 and cooled. On dilution with three volumes of 7 in dimethylacetamide (15 ml.) solution. The dye was isolated and chromatographed as in Example 3, using 750 ml. of eluting solvent. The yield was 2.7 g. (53%) of purified dye, M.P. 263-265 dec. Absorption data is in Table I.

The compounds of this invention have light-absorbing characteristics that make them valuable for use in lightabsorbing filter layers in photographic elements. These characteristics are illustrated in the following Table I.

TABLE I.--ABSORPTION SPECTRA IN METHANOL U .5. Pat. 3,486,897.

The following examples illustrate the preparation of the cyanomethylsulfone compounds used in preparing the dye compounds of the invention.

EXAMPLE Decamethylenedisulfonyldiacetonitrile soio HgCN S 02 C Hz 0 N Sodium (11.5 g., 0.5 mole) was dissolved in 200 ml. methanol. Decane-1,10dithiol (51.8 g., 0.25 mole) was then added and the mixture heated to reflux with stirring. A solution of chloroacetonitrile (31.6 ml., 0.5 mole) in 50 ml. methanol was added dropwise over 30 minutes and the refluxing solution stirred for 2 hours. The warm solution was filtered to remove sodium chloride and the filtrate evaporated to dryness. The residue was dissolved in 100 ml. glacial acetic acid. This solution was added dropwise to a solution of commercial 30% hydrogen peroxide (136 g., 1.2 moles) in 550 ml. glacial acetic acid at 35-45 over one hour. The mixture was allowed to stir at 40 for an additional hour and at room temperature overnight. The product, which crystallized out as the reaction proceeded, was filtered 01f and dried. The yield was 71.0 g. (81%). An infrared spectrum disclosed that the product had a substantial absorption band at 1043 cm. attributed to sulfoxides. For 21 hours at 50-55", 9.5 g. of the above material was stirred with 8.1 g. 30% hydrogen peroxide in acetic acid. On cooling, 8.0 g. was recovered, whose absorption spectrum showed much less sulfoxide in relation to the sulfone bands (1130, 1345 cmr in the infra red. M.P. 146-148.

EXAMPLE 6 6-(cyanomethylsulfonyl)hexanoyl chloride 6-mercaptohexanoic acid (85.1 g., 0.58 mole) was dissolved in 500 ml. methanol containing sodium methoxicle (62.1 g.). To this solution heated to reflux was added a solution of chloroacetonitrile (36.3 ml., 0.58 mole) in 50 ml. methanol over about 15 minutes. After refluxing for an additional hour, the methanol was removed in vacuo and the residue dissolved in water. After acidification with hydrochloric acid, the aqueous solution was extracted with dichloromethane and ether. The extracts were dried over anhydrous sodium sulfate, filtered and evaporated to dryness. The residue weighed 110.7 g. It was then dissolved in 150 ml. glacial acetic acid and added dropwise to a stirred solution of 30% hydrogen peroxide (156 g.) in acetic acid (750 ml.) in a 2.1. round bottom flask, heated previously to 45 C. Ice cooling was provided to keep the temperature at 55-60" C. for two hours, the mixture was concentrated to near dryness, diluted with cold water, and filtered. Yield: 68.1 g. (54%). Low melting solid.

The acid chloride was prepared by refluxing the above acid (30.7 g.) with thionyl chloride (70 ml.) for one hour on the steam bath. When the excess thionyl chloride was removed on a rotary evaporator, the acid chlo ride was obtained as an oil in nearly quantitative yield. The oil was used Without further purification in subsequent reactions.

EXAMPLE 7 4,4'-biphenylylene bis [6- (cyanomethylsulfonyl) hexanoate] CH2 CN CN 6-(cyano'methylsulfonyl)hexanoyl chloride (8.3 g., 0.035 mole) and 4,4'-dihydroxybiphenyl (3.3 g., 0.018 mole) were refluxed in benzene (60 ml.) for about an hour and cooled. The solid which separated was filtered off and dried. Recrystallized from ml. of 1:1 ethanol/ acetonitrile, the compound, melting at 148-150", was obtained in 62% yield (6.4 g).

EXAMPLE 8 N,N'-phenylenebis [6- cyanomethylsulfonyl) hexanamide] C a CH:

'6 (cyanometliylsulfonyDhexanoyl chloride (8.3 g., 0.035 mole) dissolved in dichloromethane (10 ml.) was added proportionwise with ice bath cooling to a solution of p-phenylenediamine (3.3 g., 0.018 mole) in pyridine (5.6 ml., 0.07 mole) and dichloromethane (70 ml.). The product precipitated as formed during the reaction wherein the temperature ranged 15-30. The mixture was refluxed for 30 minutes and cooled. The pyridine salts were extracted out with water. The precipitate was filtered off. Recrystallized from 50% aqueous pyridine, 4.9 g. (55%) of product was obtained melting at 208-210" dec.

EXAMPLE 9 1 1- (cyanomethylsulfonyl)undecanoic acid SO;(CH2)10C O OH This compound was prepared by a sequence of Wellknown reactions beginning with ll-bromoundecanoic acid. The bromo-acid was converted to ll-mercaptoundecanoic acid using the thiouronium salt method. The reaction with chloroacetonitrile and subsequent oxidation was carried out essentially as in the preparation of 6-(cyanomethylsulfonyl)hexanoyl chloride. The oxidation was carried out in 86% yield from the 11-(cyanomethylthio)undecanoic acid., M.P. 126-128.

7 EXAMPLE 10 Tetramethylene bis[1 l-cyanomethylsulfonyl) undecanoate] 1l-(cyanomethylsulfonyl)undecanoic acid (6.0 g., 0.02 mole) was refluxed and stirred with thionyl chloride (9 ml.) in 10 ml. dichloromethane for 6 hours at 50 and let stand overnight. The excess solvent and thionyl chloride were removed in vacuo. The acid chloride, a low melting solid, was heated with 1,4-butanediol (0.9 g., 0.01 mole), initially in 15 ml. dichloromethane, at 50- 70 for 3 hours. The residue was recrystallized from ethyl acetate yielding 4.2 g. (66%).

The cyanomethylsulfone compounds specifically described in Examples S-l are illustrative and not limitative of the cyanomethylsulfone compounds that can be used in preparing the dye compounds of the invention.

When Q and Q each represents a salt-forming cation each can be an alkali metal ion such as Na K+, Li etc.; an ammonium ion such as ammonium, trimethylammonium, triethylammonium, tetramethylammonium, tetraethylammonium, benzyltrimethylammonium, a piperidinium ion (e.g., piperidinium, N-methyl-piperidinium, N-ethylpiperidinium), a morpholinium ion (e.g., morpholinium) or a pyrrolidinium ion (e.g., pyrrolidinium), for example, or a cyclic immonium ion such as a pyridinium ion (e.g., pyridinium, u-methylpyridinium, B-methylpyridinium, 'ymethylpyridinium, N-methylpyridinium, N-ethylpyridiuium, etc.) or a quinolinium ion (e.g., quinolinium, N- methylquinolinium, N-ethylquinolinium, etc.) for example.

It will be understood that the compounds having a saltforming cation can have any of the salt-forming cations set forth hereinbefore. Usually the salt-forming cation will be an alkali metal ion such as Na+ and K The invention has been described in considerable detail with particular reference to certain preferred embodiments thereof, but it Will be understood that variations and modifications can be effected within the spirit and scope of the invention as described hereinbefore.

I claim:

1. A photographic element comprising a support having thereon at least one ultraviolet filter layer consisting essentially of a hydrophilic colloid and at least one compound having the formula wherein X and Y are the same and each represents the nonmetallic atoms required to complete a thiazolidine nucleus, R and R are the same and each represents an alkylene radical, Q and Q are the same and each represents a hydrogen atom or a salt-forming cation and R represents a member selected from the group consisting of (1) an alkylene radical having 8 to 20 carbon atoms and (2) -(CH7)n-CA-R3-Al- 2)ulwherein A and A each represents 0 or RI N wherein R' is H or lower alkyl, R represents a divalent radical selected from the group consisting of an alkylene radical having 2 to 20 carbon atoms, a cycloalkylene radical having 5 to 6 carbon atoms, an arylene radical having 6 to 18 carbon atoms, a mixed alkyl and aryl radical having 8 to 20 carbon atoms and a mixed alkyl and cycloalkyl radical having 8 to 20 carbon atoms, wherein n and n each represents a whole positive number of at least 1 and wherein the sum of n and n and the number of carbon atoms of R collectively, represents a whole positive number of from about 10 to 30.

2. A photographic element comprising a support having thereon at least one ultraviolet filter layer consisting essentially of gelatin and at least one compound having the formula in accordance with claim 1 wherein Q and Q each represents a salt-forming cation.

3. A photographic element comprising a support having thereon at least one ultraviolet filter layer consisting essentially of gelatin and at least one compound having the formula in accordance with claim 1 wherein Q and Q; each represents an alkali metal.

4. A photographic element comprising a support having thereon at least one ultraviolet filter layer consisting essentially of gelatin and at least one compound having the formula in accordance with claim 1 wherein R represents an alkylene radical having 8 to 20 carbon atoms and wherein -Q and Q each represents a salt-forming cation.

5. A photographic element comprising a support having thereon at least one ultraviolet filter layer consisting essentially of gelatin and at least one compound having the formula in accordance with claim 1 wherein R represents -(CH and wherein Q and Q each represents a salt-forming cation.

6. A photographic element comprising a support having thereon at least one ultraviolet filter layer consisting essentially of gelatin and at least one compound having the formula in accordance with claim 1 wherein R represents and wherein Q and Q each represents a salt-forming cation.

7. A photographic element comprising a support having thereon at least one ultraviolet filter layer consisting essentially of gelatin and at least one compound having the formula in accordance with claim 1 wherein R represents and Q and Q each represents a salt-forming cation.

8. A photographic element comprising a support having thereon at least one ultraviolet filter layer consisting essentially of gelatin and at least one compound having the formula in accordance with claim 1 wherein R represents H H ama-gmQm-fi-(omw and Q and Q each represents a salt-forming cation.

9. A photographic element comprising a support having thereon at least one ultraviolet filter layer consisting essentially of gelatin and the compound 2,2'-bis{[3-(3- sulfopropyl) 2-thiazolidinylidene]ethylene}-2,2-(decamethylenedisulfonyl)diacetonitrile, disodium salt.

1 0. A photographic element comprising a support having thereon at least one ultraviolet filter layer consisting essentially of gelatin and the compound tetramethylene bis-{11-{3-[3-(3-sulfopropyl) 2 thiazolidinylidene]-1- cyanopropenylsulfonyl}undecan0ate}, disodium salt.

11. A photographic element comprising a support having thereon at least one ultraviolet filter layer consisting essentially of gelatin and the compound 4,4'-biphenylylene bis-{6-{3-[3-(3-su1fopropy1) 2 thiazolidinylidene-l-cyano-1-propenylsulfonyl}hexanoate}, disodium salt.

12. A photographic element comprising a support having thereon at least one ultraviolet filter layer consisting essentially of gelatin and the compound N,N'-phenylenebis-{6-{3-[3-(3-sulfopropyl) 2 thiazo1idinylidene1-1-cyano-1-propenylsulfonyl}hexanamide}, disodium salt.

1 0 References Cited UNITED STATES PATENTS 3,555,016 1/1971 Peter et al. 260240.9

3,629,274 12/1971 Oliver 9684 R 3,652,284 3/1972 Oliver 9684 R FOREIGN PATENTS 615,414 1/1961 Italy 260-240.9

1,097,421 2/ 1955 France 9684 R RONALD H. SMITH, Primary Examiner U.S. Cl. X.R. 

